Cost of coal-Ưmine fatalities and some permanent disabilities in Ohio, Jan. 1, 1930-Dec. 31, 1934.

Bibliographic Details

Corporate Author:	United States. Bureau of Mines
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1938.
Subjects:	Mine accidents. Coal and coal mining.
Online Access:	Electronic resource (PDF)